Reenforced pyrotechnic flare



1,530,692 C. L. PAULUS REENFORCED PYROTECHNIC FLARE Filed June 27, 1923 INVENTOR (7/1 (0-165 L.Pa.w&u,

Patented Mar. 24, IQZS. x

cums L. PAUL'US, on Damon, omo.

unnrononn PYRo'rEomrrc mmi.

'or candles and it is the primary object of the invention to produce a reinforcement for a pyrotechnic candle which will enable acandle to be made that-will from end to end. Up to thepresent time, pyrotechnic candles have not been satisfactory, as they'burn with such an intense heatthat the unburnt' portions are expanded so greatly and so am evenly as to cause large portions of the candie to break 01f completelyn \Vhere these pyrotechnic candles are used on airplanes or similar devices, much damage has been caused due to fires started on the ground beneath to such disintegration of pyrotechnic burn completely flares and signals. The material used in the construction of the candles absorbs moisture very rapidly and it is probably this absorbed moisture which causes 'sutficient pressure sult in the disintegration of the candle. I

It is a second object of the invention to produce a reinforcement for' a pyrotechnic vide a reinforcement which will burnand be consumed by about it. i I

Further objects will he; more fully set forth in the attached spec ificati0n and claims.

r, Referring to the drawings in which .Fig. 1 is a side elevation, partly'm section, of a reenforced pyrotechnic candle; Fig. 2 is a plan view and Fig. 3 is-a detailed view showing the reinforcing screen. The illuminating unit which is preferably constructed of ma nesium or other brilliant burning compoun the combustion taking place reinforcing rods or by a solid sheet of alufrom within after the candle is heated, to re Application filed June 27, 1923. Serial 1a.. e4s,11e.

' 4, is reenforced through the use ofa spirally formed sheet of aluminum wire mesh, 5, which extends from end to end of the candle and the outside ortions of this'reinforced screen form a cyllndrical structure enclosing. the entire candle.

. The magnesium or other brilliant burning compound is formed in the usual manner as a paste, and is added to the reinforcing structure in any suitable manner and the paste permitted to harden. Y The construction as just described is desirable because of the factthat the aluminum isfused very rapidly by the heat of the burning illuminating unit, aluminum having a suflicient tensile strength to withstand any tendencies toward disintegration of the candle by internal expansion. The reinforcement' may however if desired, be constructed of asbestos cord or mesh, by a. series of minum. The candle may be ignited by any conventional means, such as an electrically operated fusee or, through a booster charge ignited through a primer, or,through any other desirable device.

'Iclaim:

- 1. A reenforced pyrotechnic flare co'mpris ing a mass of highly inflammable solid material and a reinforcement therefor comprising a strip of foraminous material. I

2. -A reenforced pyrotechnic flare comprising a candle of big 1 inflammable solid mat-- terial and a strip 0 foraminous aluminum. extendin from one end of said candle to the other an within the same.

3. A reenforced pyrotechnic flare comprising a candle of big 1 y inflammable solid material and a strip of aluminum wire mesh extendin spirally from the center to the out-, side o the'c'andle. r 4. A reenforoed yrotechnic flare comprising a candle of big y inflammable material and a" cylindrical strip of foraminous metallic material e'xtendingfrom end to end.

thereof. a

' CHARLES PAULUS. 

